For encoding, there's a million PIC-based solutions on the net.
I designed my own, using a different PIC (12HV615) to reduce
extra components to minimal: it has a built-in voltage stabilizer
(no 78L05 needed, just a resisitor), and using bitstream D/A
so no external D/A network neccessary.
I have a sick Decibel DB4330 Z-Matcher with a crushed and mangled
feed-thru capacitor (looks more like a ceramic non-capacitor feed-thru
to me). Anyone know if the original feed-thru part is still available
out there? Rough details: 10-32 x 3/8 body; 1 long 15 AWG wire ;
ceramic insulator; 0.22
Bill,
Give me a phone call about those 220 (217-219mhz) repeaters again. I would like
to meet you in your area monday evening and drop those off.
Thanks
Norm N5NPO
251-234-0295
- Original Message -
From: Repeater-Builder@yahoogroups.com Repeater-Builder@yahoogroups.com
To:
If you have the wrong reference oscillator selected, it will create
steps that are invalid.. and thus syth unlock..
The ref osc for factory standalone units is based on 12.8 mhz but there
is an optional 10.0 mhz ref osc.. and it can be external or internal.
The PLL steps are calculated from
I think this thread has clearly demonstrated that there are a couple different
groups involved in building/maintaining repeaters. Those who are involved in
commercial systems are likely best served by purchasing commercial grade
parts/packages/systems, as their focus is on 'having' a
Hey everyone,
Look in your junkboxes, I 'm looking for an unmodified, working Com-Spec
TE-64D Tone Box. cosmetics unimportant. Thanks
de Lee
K4LJP
73
--
Always drink upstream from the herd.
And then there are those who need to 'have' a repeater but have next
to no money and lots of time. As a member of that group I also
appreciate discussions like this! I do the best I can with what I
can get, and often end up spending untold hundreds of hours
re-inventing the wheel.
73,
Paul
Hi folks,
Several weeks ago I posed the question of using a Commercial VHF antenna that
was resonant on 154Mhz on 146.745Mhz. We tried it today. The SWR was a bit
over 2:1 on the repeater freq. We installed a T connector after the cans and
used an open stub to try to match the line...got it
Amen to that! However, instead of re-inventing the wheel, I find myself
spending a lot of time making discarded sow's ears into the proverbial silk
purse. g
73 and aloha Eric KH6CQ
--- On Sat, 5/8/10, N1BUG p...@n1bug.com wrote:
From: N1BUG p...@n1bug.com
Subject: Re: [Repeater-Builder] Re:
ae6zm wesbfl...@... wrote:
I think this thread has clearly demonstrated that there
are a couple different groups involved in building/maintaining
repeaters.
Corecto'
Those who are involved in commercial systems are likely best
served by purchasing commercial grade
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